(A) Minimum heating requirements for single-family dwellings.
(1) Heating equipment for single-family dwelling unit buildings shall be designed to maintain an inside temperature of 72°F at a distance of three feet and more from exterior walls, and at a level of five feet above the floor when the outside temperature is 10° below 0°F in all rooms of the residential structure.
(2) The systems shall be designed, installed, and balanced or adjusted to provide distribution of heat to all rooms in proportion to the calculated heat loss of the spaces heated. The temperature difference between any two habitable rooms shall not exceed 5°F with temperatures taken in the center of the room 30 inches above the floor. Habitable rooms shall include kitchens, bathrooms, toilet rooms and recreation rooms when located below ground level.
(B) Required temperature in other than single-family dwelling units.
(1) It shall be the duty of every person owning or controlling any two-family, multiple-family dwelling, hotel or lodging, rooming or boarding house, in which the heat is furnished from a heating plant used in common for the purpose of heating the various rooms and apartments therein and the heating plant is under the control or supervision of the owner or person in control of the building to furnish heat to the rooms and apartments from October 1 of each year to May 1 of the succeeding year so that the occupants thereof may secure, without the undue restriction of ventilation as to interfere with proper sanitary conditions, a minimum temperature of 68°F from 10:30 p.m. to 6:30 a.m., and 72°F at 8:30 a.m. and thereafter until 10:30 p.m., averaged throughout the apartment. (See division (E) below for method of determining temperature.)
(2) Notices of complaint concerning lack of heat in the room or apartment shall first be given to the person, firm or corporation by registered mail before a violation of this section shall be deemed to exist.
(C) Required temperature in factories; moisture content.
(1) It shall be the duty of every person owning or controlling the heating plant which furnishes heat to any factory or workshop to maintain a temperature within the factory or workshop of not less than 68°F without the undue restriction of ventilation as to interfere with proper sanitary conditions therein. (See division (E) below for method of determining temperature.)
(2) This requirement shall not apply to any factory or workshop where the business conducted therein is of a nature that a higher or lower temperature than 68°F is necessary or expedient for the work, trade, occupation or manufacturing processed of the business so conducted therein.
(3) In all cases where a higher or lower temperature is necessary or expedient, the moisture content of the air shall be increased, where the temperature is maintained below 68°F, in the proper amount to maintain a wet bulb temperature between 54°F and 58°F, and in the case of special manufacturing processes which is necessary or expedient to maintain a wet bulb temperature below or above the extremes herein set forth, it shall be the duty of the person owning or controlling the premises to use reasonable precautions and safeguards as will meet the requirements of the special manufacturing processes without endangering the health of the occupants of the factory or workshops.
(D) Required temperatures in offices, stores and places of employment. It shall be the duty of any person, firm or corporation owning or controlling the heating plant which furnishes heat to any office, store or other place of employment, to maintain a temperature within the office, store or place of employment of not less than 68°F without the undue restriction of ventilation as to interfere with proper sanitary conditions therein, between the hours of 8:30 a.m. and 6:00 p.m., from October 1 of each year to June 1 of the succeeding year, Sundays and full legal holidays excepted. (See division (E) below for method of determining temperature.)
(E) Method of determining temperature.
(1) Temperature readings shall be made only by an inspector under the direction of the County Department of Health by means of a standard Fahrenheit thermometer approved by the Department of Health in not less than two separate rooms in the apartment or, if the apartment consists of only one room, then in two opposite parts of the room as near the extremes as practicable.
(2) Failure to furnish the heat required under the terms of this subchapter shall not constitute an offense where it is due to the breakdown of the heating plant, if diligence is used to have the plant repaired, unless the breakdown has been caused by the violation of an ordinance relating to the operation of heating plants, nor where it is due to strikes, to general shortage of fuel or any act of the tenant who makes the complaint, or to any cause beyond the owner’s control, or unless written notice of the failure has been given to the owner or agent of the building by registered mail, and the temperature readings herein provided for shall not be made until after the delivery of written notice.
(Prior Code, § 150.132) Penalty, see § 150.999